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Altera_Forum
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17 years ago

Multiply add Block and How to cope with the problem of the lack of ressources

Hi, I'm still using DSP Builder 6.0 on Matlab 7.01. In fact, after analysing , place an route my model, I'm confronted with a lack of ressources in my FPGA on Dsp Board EP2S180. - 222% utiliza...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

Instead of using DSP blocks all the time, you can try using logic elements for some of the multiply and add. If you are using DSP Builder, in the GUI, there should be a section asking how you want to implement your multiply and add... simply choose auto and let the tool decide. If you are running out of DSP Blocks, then it would start using LEs to implement your multipliers...

Of course, reducing your hardware via TDM is always a good idea...